I need to know how i make persian icing
Perhaps you could try contacting Sanam Lamborn at My Persian Kitchen (mypersiankitchen.com) for ideas? (email and twitter info on her site)
You cold also contact: http://food52.com/users...
Azita is the author of a great blog.
Azita is a cook on this site, and she is a very knowledgeable and nice person. She can help you.